Como instalar o WiFi e o driver gráfico no Debian 9?

Question

Eu instalei recentemente o Debian 9.

Agora eu preciso instalar o driver da placa WiFi. Mas não consegui encontrar um no meu sistema.

Estes são os meus dispositivos listados pelo comando lspci :

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1c.4 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 5 (rev e4)
00:1c.5 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 6 (rev  e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
02:00.0 Network controller: Broadcom Limited BCM43142 802.11b/g/n (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
 04:00.0 3D controller: NVIDIA Corporation GK208M [GeForce GT 740M] (rev a1)
05:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5227 PCI Express Card Reader (rev 01)

Meu /etc/apt/sourlist.list de conteúdo:

#deb cdrom:[Debian GNU/Linux 9.0.0 _Stretch_ - Official amd64 NETINST     20170617-13:06]/ stretch main
deb http://ftp.us.debian.org/debian/ etch main contrib non-free
deb http://security.debian.org/ etch/updates main contrib
deb http://http.us.debian.org/debian/ etch main contrib non-free
deb http://deb.debian.org/debian stretch main
deb-src http://deb.debian.org/debian stretch main
deb http://deb.debian.org/debian stretch-updates main
deb-src http://deb.debian.org/debian stretch-updates main
deb http://security.debian.org/ stretch/updates main
deb-src http://security.debian.org/ stretch/updates main

Pergunta: Como instalo gráficos e driver de placa WiFi?

    

Answer 1

Para ativar o suporte a dispositivos Wi-Fi baseados nos chips de LAN sem fio da Broadcom, usando o driver do fornecedor em sistemas Debian:

Dispositivos Broadcom BCM4311, BCM4312, BCM4313, BCM4321, BCM4322, BCM43224, BCM43225, BCM43227, BCM43228, BCM43142, BCM4331, BCM4352, BCM4360 (wl)

Instalação

1- Adicione um componente "non-free" ao /etc/apt/sources.list para sua versão Debian, por exemplo:

# Stretch
deb http://httpredir.debian.org/debian/ stretch main contrib non-free

2- Atualize a lista de pacotes disponíveis. Instale os pacotes relevantes / mais recentes de linux-image, linux-headers e broadcom-sta-dkms:

# apt-get update
# apt-get install linux-image-$(uname -r|sed 's,[^-]*-[^-]*-,,') linux-headers-$(uname -r|sed 's,[^-]*-[^-]*-,,') broadcom-sta-dkms

3- Descarregue módulos conflitantes:

# modprobe -r b44 b43 b43legacy ssb brcmsmac bcma

4- Carregue o módulo wl:

# modprobe wl

5- Configure sua interface sem fio conforme apropriado

    

Answer 2

# apt install firmware-linux-nonfree

geralmente resolve esses problemas

    

Answer 3

Eu instalei meu antigo driver de laptop para laptop HP seguindo as instruções deste link: link

sudo apt-get instala o firmware-b43-installer